Watch-plate.



No. 638,510. Patented nec. 5, |899. F. HECHT. WATCH PLATE.

. (Application filed Nov. 18, 1897.) (No Model.)

' UNITED STATES PATENT .rrica FELIPE HECHT, OF GENEVA, SVITZERLAND.

WATCH-PLATE.

srncrrca'ron forming par@ of Letters Patent No. 638,510, dater. December5, 1899.

Application led November 18, 1897. Serial No. 658,911. (No model.)

To ctZZ whom t may concern:

Be it known that I, FELIPE HECHT, a citizen of the Kingdom of Spain,residing at Geneva, Switzerland, have invented certain new and usefulImprovements in Vatches, of which the following is a specilication.

This invention relates to improvements in watches; and the object of theinvention is to facilitate the removal of a portion of the movement forpurposes of lrepair or examination withouttaking the entire movementfrom the case, and particularly to permit the separate removal of thebarrel, thus giving easy access to the interior of the movement. Theobject is, further, to provide a click-spring and abutment for the sameof improved construction and arrangement.

To these ends the invention consists in the combination, with abarrel-bridge provided with an extension having a recess or depressionand an abutment at the junction of the bridge and extension, of awinding-wheel supported above said barrel-bridge and an eX- pansileclick-spring located in said recess, iiXed against movementlongitudinallyT therein and engaging by its click the teeth of saidwinding-wheel, said click being provided at its outer side with a heelengaging said abutment and the shank of said click-spring eX- tendingfrom the click adjacent to said heel along the recess-wall.

In the accompanying drawings, Figure lis a plan view of a watch-movementembodying my invention. Fig. 2 is a plan view of the barrel-bridge andclick-spring. Fig. 3 is a plan View of the crown-bridge, and Fig. 4 is avertical section of the movement on line .fr ly .c of Fig. l.

Similar letters of reference indicate corresponding parts.

Referring to the drawings, A represents the recessed pillar-plate of thewatch-movement, upon which are supported the barrel-bridge B and thecrown-bridge O. The barrel-bridge B is attached to the pillar-plate A bymeans of a screw b, which passes through the extension B of the same andthe usual studs and supports in a suitable bearing a windingwheel R,having the center r, and at the opposite side of the barrel-bridge, inthe recess of the pillar-plate, are located the usual spring and barrel.A click-spring D is retained in a circular recess or depression of thebarrelbridge by a pin CZ, which prevents longitudinal movement of thespring in the recess, the outward tension of said spring keeping theclick d' of the same in position in engagement with the teeth of thewinding-wheel R and the shank of the spring located along therecesswall. The crown-bridge C is secured upon the pillar-plate A bymeans of a single screw c, which passes through the crown-wheel c' andthe crown-bridge and forms the axle of the crown-wheel and of the usualstuds. The bridge M of the center wheel is also secured by means of asingle screw m and the usual studs, as also the bridges N and O of theescapement-wheel and of the balance-wheel, respectively. The bridges Mand N may be made in one piece, if desired, so as to form one bridge,which would be secured by means of the screw m.

The barrel-bridge B is itself recessed in its main part for receivingthe winding-wheel, as shown in Fig. 2, and the recess of the extensionopens into the main recess for the winding-wheel. The click d isprovided at its outer side with a heel cl2, which normally engages anabutment d3, formed at the junction -of the recess-walls of the mainportion and extension of the bridge, the shank d4 of the click-springextending -along the adjacent recess-wall of the extension. By thisconstruction and arrangement of the click-spring, abutment, andrecess-wall the positive and reliable engagement of the click with thewinding-wheel and securing of the click against movement when so engagedare produced. As the click does not enter the teeth of the winding-wheelwith pressure, but is limited in its outward movement so as normallyonly to enter the path of the teeth of the winding-wheel, it is possibleto replace the winding-wheel, should the samehave been removed, withoutholding the click-spring in compressed condition during the operation.

The improvements above described are the means of effecting a largesaving in expense in making watch-movements, as they reduce the numberof parts and facilitate also the repairing of the movement whennecessary.

Having thus described my invention, I claim as new and desire to secureby Letters Patent-n IOO n a Watch, the combination, with abarrel bridgeprovided With an extension having a I recess or depression, and anabutment at the click-spring extending from the click adjacent to saidheel along the recess-Wall, substantially as set forth.

In testimony whereof I have signed my 15 name to this specification inthe presence of two subscribing Witnesses.

FELIPE HECHT.

Witnesses:

E. MERsoHUEN, JUAN HECHT.

